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If you care about your health and health of your loved ones it is important to make sure they breathe clean air inside of your home. Trust Stable Temp HVAC to take care of that for you.


Most families in San Diego county use older HVAC system and don’t bother as long as it seems to cool or warm their home. Many of our new customers never changed the filter since they bought the house few years ago, when it is recommended to do it every 2-3 month. They either didn’t know about it or just didn’t care until they had to call us and have a technician come out and perform work on the system.


When you install a new HVAC system it doesn’t guarantee that it will circulate clean air. That will depend on your lifestyle, cleanliness of your household and other factors. Traditional heating and air conditioning systems come equipped with an air filter but it is not capable to filter all contamination in returned air, especially if you don’t change it frequently.


That is why here at Stable Temp we offer a few air purifying solutions for you to consider.


Media Air Purifiers

Also called mechanical air cleaners, these use filters that are thicker and denser to trap smaller particles than standard furnace/air handler filters. They also last longer than standard furnace filters.


Most media air purifier filters have a MERV rating listed. This stands for the Minimum Efficiency Reporting Value. The higher the MERV rating, the better they filter air including very small particles.

HVAC air purifiers are installed in the return-air ductwork immediately before the air handler or furnace. Some filters are replaceable. Most are washable – but that’s a hassle you might not want.

These units don’t use electricity. They filter pollutants from the air that flows through them when the blower fan is running.


There are three specialty types of media air filters:

  1. HEPA filters – To qualify as a high-efficiency particulate air filters (HEPA) filter.It supposed to trap any particle larger than 0.3 microns. HEPA filters have MERV ratings from 17-21.

  2. Activated charcoal/carbon filters that remove odor-causing particles from the air. These filters are used in combination with the standard media filter to remove both particles and odors. Carbon molecules have tremendous surface area. Each pound of activated carbon has a surface area of +/- 100 acres for gas to pass through and be absorbed or to bond with.This is an excellent combination for homes where odors from pets and cooking are an issue. If your home’s odors are caused by mold or mildew, filtering out the odor isn’t the solution. Locating the cause of the mold and remedying it critical to maintaining a healthy home.

  3. Charged media filters are given an electrostatic charge in the factory. Small particles are attracted to the static charge like sweaters and socks cling when removed from a hot dryer. The charge is effective for a matter of months, and then the filter should be changed.



UV Air Purifier with Odor Absorption

Photocatalysis is the oxidation of organic contaminants such as bacteria and mold using magnetic particles coated with titanium dioxide nanoparticles. To produce harmless substances like carbon dioxide and water. A PCO filter is coated with titanium dioxide that comes in contact with harmful pollutants. A UV light is shined onto the catalytic filter to create a reaction that destroys the pollutants. PCO technology is often used in combination air cleaners.


Electronic Air Cleaners

Most EACs include two types of filtration. A pre-filter catches large particles. Then, the tiny particles in the air are charged with electricity. The charge attracts them to collector plates that have an opposite charge, like magnets. This effectively removes them from the air. In some cases, the electrical charge destroys the virus or bacteria.


These units are also called ionic and electrostatic air cleaners due to the electrical charge employed. The filters can be cleaned in a dishwasher as needed, but should be air dried.

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